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Do not use the Empirical Rule for this question. The weight of 180 harp seals near...

Do not use the Empirical Rule for this question.
The weight of 180 harp seals near the coast of Newfoundland is normally distributed with a mean of 290 pounds and a standard deviation of 40 pounds. About how many harp seals have a weight between 280 pounds and 320 pounds?
Give number, not percent.

Math   Statistics-And-Probability   
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Answer #1

Ans : 0.3721*180 = 66.978 = 67

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